Ключевые слова: attract, attracting, attraction, background, black, blue, closeup, color, dark, effort, electromagnetic, element, experiment, force, gravitation, gravity, hand, holding, horseshoe, idea, iron, magnet, magnetic, magnetism, magnetize, male, man, metal, metallic, north, person, physics, polarity, polarize, pole, power, red, science, shape, south, steel, strength, symbol, technology,